Program to get the Sum of series : 1 | C # program to get the sum of the series ; Function to get the series ; Sum of n - 1 terms starting from 2 nd term ; Driver Code
using System ; class GFG { static double Series ( double x , int n ) { double sum = 1 , term = 1 , fct , j , y = 2 , m ; int i ; for ( i = 1 ; i < n ; i ++ ) { fct = 1 ; for ( j = 1 ; j <= y ; j ++ ) { fct = fct * j ; } term = term * ( - 1 ) ; m = Math . Pow ( x , y ) / fct ; m = m * term ; sum = sum + m ; y += 2 ; } return sum ; } public static void Main ( ) { double x = 9 ; int n = 10 ; Console . Write ( Series ( x , n ) * 10000.0 / 10000.0 ) ; } }